78031280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20753}}^1$

素因数の和:20813

約数の個数: 40

約数和(自身を含む): 185291712

約数和(自身を除く): 107260432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 20753, 41506, 83012, 103765, 166024, 207530, 332048, 415060, 830120, 975391, 1660240, 1950782, 3901564, 4876955, 7803128, 9753910, 15606256, 19507820, 39015640, 78031280]

約数ペア:

[(1, 78031280), (2, 39015640), (4, 19507820), (5, 15606256), (8, 9753910), (10, 7803128), (16, 4876955), (20, 3901564), (40, 1950782), (47, 1660240), (80, 975391), (94, 830120), (188, 415060), (235, 332048), (376, 207530), (470, 166024), (752, 103765), (940, 83012), (1880, 41506), (3760, 20753)]